diff options
Diffstat (limited to 'sys/dev/usb/umass.c')
| -rw-r--r-- | sys/dev/usb/umass.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/dev/usb/umass.c b/sys/dev/usb/umass.c index fabb327..be33e01 100644 --- a/sys/dev/usb/umass.c +++ b/sys/dev/usb/umass.c @@ -323,6 +323,12 @@ struct umass_devdescr_t { * sector number. */ # define READ_CAPACITY_OFFBY1 0x2000 + /* Device cannot handle a SCSI synchronize cache command. Normally + * this quirk would be handled in the cam layer, but for IDE bridges + * we need to associate the quirk with the bridge and not the + * underlying disk device. This is handled by faking a success result. + */ +# define NO_SYNCHRONIZE_CACHE 0x4000 }; static struct umass_devdescr_t umass_devdescrs[] = { @@ -808,6 +814,10 @@ static struct umass_devdescr_t umass_devdescrs[] = { UMASS_PROTO_SCSI | UMASS_PROTO_BBB, NO_QUIRKS }, + { USB_VENDOR_VIA, USB_PRODUCT_VIA_USB2IDEBRIDGE, RID_WILDCARD, + UMASS_PROTO_SCSI | UMASS_PROTO_BBB, + NO_SYNCHRONIZE_CACHE + }, { USB_VENDOR_VIVITAR, USB_PRODUCT_VIVITAR_35XX, RID_WILDCARD, UMASS_PROTO_SCSI | UMASS_PROTO_BBB, NO_INQUIRY @@ -2882,6 +2892,15 @@ umass_cam_action(struct cam_sim *sim, union ccb *ccb) xpt_done(ccb); return; } + if ((sc->quirks & NO_SYNCHRONIZE_CACHE) && + rcmd[0] == SYNCHRONIZE_CACHE) { + struct ccb_scsiio *csio = &ccb->csio; + + csio->scsi_status = SCSI_STATUS_OK; + ccb->ccb_h.status = CAM_REQ_CMP; + xpt_done(ccb); + return; + } if ((sc->quirks & FORCE_SHORT_INQUIRY) && rcmd[0] == INQUIRY) { csio->dxfer_len = SHORT_INQUIRY_LENGTH; |
